X0306 5 2015-12-31 0 0 0 0001047127 AMKOR TECHNOLOGY, INC. AMKR 0001158839 KIM JAMES J 2045 EAST INNOVATION CIRCLE TEMPE AZ 85284 1 0 1 1 Exhibit 99.1 Common Stock 2015-03-19 5 J 0 1317085 9.09 D 71890001 I By self as trustee Common Stock 2015-09-21 5 J 0 888647 4.86 A 71890001 D Common Stock 2015-09-21 5 J 0 888647 4.86 D 71890001 I By self as trustee On March 19, 2015, the John T. Kim 2012 Irrevocable Trust Dated 12/11/12 distributed 1,317,085 shares to the John T. Kim Trust of December 31, 1987. James J. Kim and John T. Kim are co-trustees of the John T. Kim 2012 Irrevocable Trust Dated 12/11/12. John T. Kim is the sole trustee of the John T. Kim Trust of December 31, 1987. On September 21, 2015, the James J. Kim 2013 Qualified Annuity Trust U/A Dated 5/17/13 distributed 888,647 to James J. Kim. Susan Y. Kim and James J. Kim are co-trustees. The Reporting Person may be deemed to beneficially own 71,890,001 shares. Of these shares 888,647 share are held directly, 345,000 are options exercisable within 60 days of December 31, 2015, 49,594,980 are shares held indirectly by 915 Investments, LP, in which the Reporting Person is the general partner, and the remainder of the shares are indirectly owned through various family trusts in which the reporting person is a trustee. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of his pecuniary interest therein, for purposes of the Securities Exchange Act of 1934, as amended, or for any other purpose. /s/ Jerry Allison, as Attorney in Fact 2016-02-15